Solutions: Concentration and Equilibria

Question 1

What is molar solubility?

Answer 1

the molar concentration of a solute when a solution is saturated, at a given temperature (ie. how much solute is added for complete dissolution and no precipitation)

Question 2

What is Kf?

Answer 2

the formation or stability constant of a complex ion in solution
much higher than Ksp

Question 3

what is the common ion effect?

Answer 3

reduction in molar solubility due to the presence of a common ion in solution already (when dissolving NaCl but there is already some Cl- in solution, molar solubility will decrease)

Question 4

what are the two absolute solubility rules?

Answer 4

1. all group I metals are soluble

2. all nitrate salts are soluble